Alstd philip sage



' UNITED STATES WILLIAM H. KNOWLTON,

PATENT OFFICE.

OF CHICAGO, ILLINOIS, AND PHILIP SAGE, OF DUBUQUE," IowA:

BOILER-FEEDER.-

SPECIFIOATION forming part of Letters Patent No. 281,702, dated July 24, 1883..

Application filed April 19, 1883., (No model.)

To all whom it may concern.-

Be it known that we, WILLIAM H. H.

KNOWLTON, residing at Chicago, in the county of Cook and State of Illinois, and PHILIP SAGE, residing at Dubuque, in the county of Dubuque and State of Iowa, and citizens of the United States, have invented new and useful Improvements in Feed-Water Devices, of which the following is a full description, reference being had to the accompanying drawings, in which Figure 1 is avertical cross-section of a boiler, showing our improvement applied thereto. Fig. 2 is a longitudinal section, Fig. 3 is a plan, showing a coil of pipes of a boiler, a portion of the boiler being cut away and the flues being omitted.

The object of our invention is to provide improved means for. removing impurities from feed-water for steam-boilers, which we accomplish as hereinafter described and claimed.

In the drawings, A represents a steam-boiler;

B, the fines thereof; 0, a coil of pipes located in the boiler above the lines and below the water-line.

a is a pipe through which the feed-water is carried into the coil 0.

b is a pipe connected with the opposite end of the coil, which pipe I) is carried. up above the water-line and over a funnel or receiver, D. This pipe I; is closed at its outer end, but has a slot or openings on its under side in that portion which is over the funnel or receiver D.

E is a mud-drum. I

F is a passage from the boiler to the muddrum.

' G is a passage located between the dues and extending from the lower end of the funnel or receiver D down into the passage F.

c is a valve in the feed-water pipe. (1 is the ordinary check-valve.

e is a blow-off pipe communicating with the inlet-pipe a.

f is a blow-off valve.

We make the coil of pipes O, the funnel or receiver D, and the passage G of brass, as well as that portion of the inletpipe a which is within the boiler, because by using this material (brass) for the parts mentioned incrustation therein will be almost wholly, if not entirely, prevented.

The operation is as follows: The feed-water is admitted to the coil 0 through the pipe a, and in such coil the temperature of the feed water will be raised to the same temperature 5 5 as the water in the boiler. The feed-water will be delivered, through the pipe b and through the slot or openings in the end there of, directly into the funnel or receiver D, and

will pass down through the passage G into F.

The sediment and mineral matters in the feedwater will be separated therefrom before the water is discharged from the passage G, and such sediment will pass into the mud-drum,

clear water only passing to the boiler from the passage F.

The use and operation of the blow-off pipe and valve will be understood without further description.

It is of great importance to make the coil and the funnel of brass, because if made of iron the coil would soon be filled with incrustationthe consequence of the high temperature of the water therein; but we have found that by using brass for the-coil and other parts mentioned incrustation of such parts will be prevented. Any metal upon which incrustation will not be deposited may be used in the place of brass.

What we claim as new, and desire to secure by Letters Patent, is-

In a steam-boiler, a feed-water pipe located below the water-line, having its discharge end above the water-line, in combination with a funnel or receptacle into which the feed-water 8 5 discharges, and a passage leading from such receptacle to a point at or near the bottom of the boiler and above the mud-drum, for the purpose of heating the feed-water, and thereby separating therefrom impurities which form 0 sediment, substantially as specified. 

